The
soil moisture meter TDR-100 is an easy to use and accurately measuring meter to determine the
moisture of soil. This, the soil moisture meter gives to the actual moisture content in% absolute, and the wilting point and the degree of saturation of the soil / earth. Why should you use this
soil moisture meter? In addition to the solid parts of soil there is also air
that can be measured. The percentage varies depending on soil type. Coarse-grained soils, less air (40 vol%) as fine-grained soils include (up to 60 vol%). Is the proportion of air at the bottom is higher, the soil density is lower and the air can be replaced by water. If this condition is reached, it is called a saturated soil. Under
usual conditions, the soil is not able to hold all the water it seeps. The state in which the soil can hold water is called field capacity (FK in vol%). Light soils are able to bind the water
not as good and the field capacity is well below the soil saturation. Against the binding force of the soil, the plants
absorb the water of their roots for water evaporation from the soil. The water potential of plants is limited and can not be taken from all the water from the soil. The state, up to which the plants draw water is referred to as wilting point (WP in vol%). The plant can thus use water only between the states of wilting point and field capacity.
Please note: The soil-moisture sensor works only in combination with the probe tuned to the particular soil. These probes, we offer separately in three lengths under
"Additional equipment". Therefore it is necessary o order at least one
sensor according to your demand. For further information of the soil moisture meter TDR-100, please read the following technical data or call our Hotline:
UK customers +44(0) 23 809 870 30 / US customers +1-410-387-7703. Our engineers and technicians will gladly advise you on the
soil moisture meter TDR-100 or any other soil
moisture meters and of course all products in the field of measuring
instruments, regulation
and control and scales.

- Measures and presents the main parameters of
the soil moisture
- By means of in the delivery
- Software pre-programmed user-specific
- 2 different ground / soil types can be selected

- 3 different humidity probes available (measures
as a function of task type and of soil)
- Easy to use / robust housing
- For many years to use in agriculture, industry,
landscaping

Software
With the included software, the soil moisture meter can be programmed exactly for your needs.
The length of soil moisture probes, the desired units for the display of water
deficits or limits for internal measurements of parameters can be entered. The software can be installed on a PC or Laptop. Connect the soil
moisture meter with a PC and transmit the adjustments to the device.

Technical
specification

Measurement depth

0
... 100%
about 0 ... 50% absolute moisture

Resolution

1
%

Accuracy

±
3 vol. %

Display of Parameters

vol.
% absolute, vol. % relative, water deficit in mm/m2

Type of soil

two
selectable

Length of sensors

adaptable
sensors with a length of 75, 120 or 200 mm can be ordered additionally

Protection class

IP54

Interface

RS-232

Software

included
in delivery, language: English

Display

double
digit, fifteen digit LCD

Battery

4
x 1.5 V battery (AAA)

Dimensions

105
x 70 x 18 mm

Weight

700
g

Field of application
Typically, this soil moisture meter is used in the sector of agricultural production.
The device is also used to improve plant breeding in green houses or for regulation and control of soil-watering of golf courses
or sports grounds in general.